SuperSport CompassDeveloped for and tested on offshore race boats the SuperSport Series compasses feature the PowerDampA(R) Plus dial. This dial technology features the PowerDamp? dial skirt to prevent oscillation, larger DirectiveForce(TM) magnets for quick lock on and extra-large steel pivots and jewels for smooth fast action.Features 3 3/4" (96 mm) PowerDamp Plus, High-Visibility Blue Open Face Dial with Extra Large White Numerals Easily Installed, Fits 4" (10.16 cm) Mounting Hole Built-in Compensators to Easily Adjust for Deviation Built-in 12v Green LED lighting in Movable Sun Shield Adapter Rings Available. Sold separately. 6" (15.24) 100% Repairable Exclusive 5-Year Ritchie Warranty Notes: 24 & 32v lighting options are available. Some custom built OEM models may have different lighting. Specifications: Mounting Style: Flush Lubber Lines: Yes Backlight: Yes Read: Rear Box Dimensions: 7"H x 8"W x 8"L WT: 2.1 lbs UPC: 010342138293 Quick Guide (pdf)Owner&';s Manual (pdf)